Hi ZCP,
+1 with the above advice.
One thought though-while talking to my aged next door neighbour the other day -he told me that when his kit was inspected in barrack after buying a straight razor -he was put on a charge for possession of a dangerous weapon.Now that was many years ago around the Korean war date.I don't know if the same may apply today-so it's worth checking before you buy!
Good luck!
Noggs